摘要
利用ＯＭＡ谱仪及三台单色谱仪研究了爆炸激波管中铝粉在氢氧爆轰激励下快速反应的发射谱及辐射特性。研究发现：铝粉氧化反应主要机理是铝粉和氧反应；铝粉和水的反应是次要的。铝粉颗粒变细可以明显增强ＡｌＯ辐射强度，加快铝反应速率。利用我们研制的分光技术测量ＡｌＯ的三条振动谱线强度，确定了ＡｌＯ激发温度。测量表明：随着铝粉颗粒变细，ＡｌＯ激发温度明显提高。利用连续辐射谱确定的辐射温度同样说明添加铝粉可以提高反应温度。
The emission spectra and radiation behaviour of aluminium powder driven by hydro oxygen detonation in explosion shock tube are studied by OMA spectrograph and three monochromaters.It is found that the major mechanism oxidation reaction of aluminium powder is a reaction of aluminium with oxygen.The reaction of aluminium with water is secondary.The aluminium particle with small size may obviously increase AlO radiation intensity,and raise reaction of aluminium.AlO excitation temperature is determined by AlO three vibration spectra intensity and spectroscopy technique.The results show that AlO excitation temperature increases,as the particle size of aluminium decreases.Radiation temperature,which is determined by continuous radiation spectra,can be raised in the same way after adding aluminium powder.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1998年第2期145-149,共5页
Explosion and Shock Waves
基金
国家自然科学基金
中国工程物理研究院科学与技术基金
